In the article “Young-onset colorectal cancer in New South Wales: a population-based study”, published in the 21 November 2016 issue of the Journal (Med J Aust 2016; 205: 465-470), there is an error in Box 3. The colours of the two curves have been interchanged: the top curve should be red, the lower curve blue. The corrected article is available at https://mja.com.au/doi/10.5694/mja16.00237.